A coupling nut, also known as an extension nut, is a threaded fastener used to join two male threads, commonly a threaded rod or pipe. The outer part of the nut is typically hexagonal, allowing for easy tightening with a wrench. Variations include reducing coupling nuts for joining different thread sizes, sight hole coupling nuts that allow visual inspection of engagement, and left-handed thread coupling nuts.
These nuts are ideal for assembling long rod systems from shorter rods by threading them into the coupling nut for a specific length. They can be used to either tighten a rod assembly inward or press it outward, making them versatile in mechanical applications.
Our company specializes in producing a wide range of cold-headed hexagon nuts, meeting international standards such as DIN, ISO, ANSI, JIS, and GB. We offer nuts in various sizes, ranging from M6 up to M48, and multiple types including standard hex nuts, castle nuts, flange nuts, nylon insert lock nuts, electroplated zinc, colorful zinc, blue zinc, black oxide, and hot-dip galvanized nuts.
We produce nuts in different hardness grades, including 4.8, 6, 8, 10, and 12.9, using high-quality materials like 45# and 64CrMo carbon steel, as well as stainless steel options. Our production methods include cold heading for smaller sizes and forging for larger, high-hardness nuts. We also accept custom drawings and samples for tailored production.
Our packaging includes plastic woven bags, cartons, and wooden pallets, ensuring safe delivery. We have a professional R&D team and a proven track record in exporting to countries across Europe, Asia, Africa, and the Middle East, including Czech Republic, Lithuania, Georgia, Australia, and many others.
With over a decade of export experience, we deliver to major ports such as Qingdao, Shanghai, Ningbo, and Tianjin. Our customers appreciate our competitive pricing, quality products, and reliable service. We welcome inquiries from international clients and are committed to providing large quantities of high-quality nuts at cost-effective prices.
Our product line includes detailed specifications, manufacturing processes, and real-time photos showcasing the quality and variety of our coupling nuts. Whether you're looking for standard or custom solutions, we are here to meet your needs. Contact us today for a quote and let us support your projects with precision and reliability.
Car Polish
Car polishing refers to polishing the car before waxing, sealing or coating during car beauty. In the Car Cleaning and car washing industry, Car Wax and car polish are often used alternately. For ordinary people who want to polish their cars, it may be an expensive mistake not to distinguish between car wax and car polish. Polishing is a paint correction process to remove the defects on the surface of your car, while waxing is to lay a protective coating on the paint of the car as a detailed finish.
Car polish is a substance used to improve the appearance of a vehicle's exterior by removing minor scratches, swirl marks, and other imperfections. It is typically made of a combination of abrasive particles and oils or waxes that help to smooth out the surface of the paint and provide a protective layer. Car polish is applied using a soft cloth or polishing pad and is usually buffed off after it has dried to reveal a glossy, shiny finish. It is important to choose the right type of car polish for
Car Polish,Swirl Remover Polish,Car Leather Polish,Polish Wax Spray
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